Exact Mass: 309.1132
Exact Mass Matches: 309.1132
Found 102 metabolites which its exact mass value is equals to given mass value 309.1132,
within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error
0.001 dalton.
N-acetylneuraminate
Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID A018; [MS2] KO008824 KEIO_ID A018 N-Acetylneuraminic acid is a sialic acid monosaccharide ubiquitous on cell membrane glycoproteins and glycolipids of mammalian cell ganglioglycerides, which plays a biological role in neurotransmission, leukocyte vasodilation, and viral or bacterial infection.
9-O-Acetylneuraminic acid
The acetate ester of the primary hydroxy group of neuraminic acid.
N-Glycolyl-Muramic Acid
N-Acetylneuraminic acid
N-Acetylneuraminic acid (NeuAc) (CAS: 131-48-6), also known as sialic acid, is an acetyl derivative of the amino sugar neuraminic acid. It occurs in many glycoproteins, glycolipids, and polysaccharides in both mammals and bacteria. The most abundant sialic acid, NeuAc, is synthesized in vivo from N-acetylated D-mannosamine (ManNAc) or D-glucosamine (GlcNAc). NeuAc and its activated form, CMP-NeuAc, are biosynthesized in five consecutive reactions that form the intermediates UDP-N-acetylglucosamine (UDP-GlcNAc), N-acetylmannosamine (ManNAc), ManNAc 6-phosphate, NeuAc 9-phosphate, and CMP-NeuAc. CMP-NeuAc is transported into the Golgi apparatus and, with the aid of specific sialyltransferases, added onto nonreducing positions on oligosaccharide chains of glycoproteins and glycolipids. NeuAc is widely distributed throughout human tissues and found in several fluids, including serum, cerebrospinal fluid, saliva, urine, amniotic fluid, and breast milk. It is found in high levels in the brain, adrenal glands, and the heart. Serum and urine levels of the free acid are elevated in individuals suffering from renal failure. Serum and saliva Neu5Ac levels are also elevated in alcoholics. A genetic disorder known as Salla disease or infantile NeuAc storage disease is also characterized by high serum and urine levels of this compound. The negative charge is responsible for the slippery feel of saliva and mucins coating the bodys organs. This particular sialic acid is known to act as a "decoy"" for invading pathogens. Along with involvement in preventing infections (mucus associated with mucous membranes — mouth, nose, GI, respiratory tract), Neu5Ac acts as a receptor for influenza viruses, allowing attachment to mucous cells via hemagglutinin (an early step in acquiring influenzavirus infection). NeuAc is also becoming known as an agent necessary for mediating ganglioside distribution and structures in the brain. Sialic acid (SA) is an N-acetylated derivative of neuraminic acid that is an abundant terminal monosaccharide of glycoconjugates. Normal human serum SA is largely bound to glycoproteins or glycolipids (total sialic acid (TSA): 1.5-2.5 mmol/L), with small amounts of free SA (1-3 umol/L). Negatively charged SA units stabilize glycoprotein conformation in cell surface receptors to increase cell rigidity. This enables signal recognition and adhesion to ligands, antibodies, enzymes, and microbes. SA residues are antigenic determinant residues in carbohydrate chains of glycolipids and glycoproteins, chemical messengers in tissue and body fluids, and may regulate glomeruli basement membrane permeability. Sialic acids are structurally unique nine-carbon keto sugars occupying the interface between the host and commensal or pathogenic microorganisms. An important function of host sialic acid is to regulate innate immunity. Sialic acid is the moiety most actively recycled for metabolic purposes in the salvage pathways in glycosphingolipid metabolism. Sialic acid is indispensable for the neuritogenic activities of ganglioside constituents which are unique in that a sialic acid directly binds to the glucose of the cerebroside, they are mutually connected in tandem, and some are located in the internal parts of the sugar chain. Sialylation (sialic acid linked to galactose, N-acetylgalactosamine, or another sialic acid) represents one of the most frequently occurring terminations of the oligosaccharide chains of glycoproteins and glycolipids. The biosynthesis of the various linkages is mediated by the different members of the sialyltransferase family (PMID: 11425186, 11287396, 12770781, 16624269, 12510390, 15007099). N-Acetylneuraminic acid is a sialic acid monosaccharide ubiquitous on cell membrane glycoproteins and glycolipids of mammalian cell ganglioglycerides, which plays a biological role in neurotransmission, leukocyte vasodilation, and viral or bacterial infection.
N-Acetyl-a-neuraminic acid
N-Acetyl-alpha-neuraminate is a sialic acid. Sialic acids are an important family of related 9-carbon sugars acids, present on the surface of many different cells and functioning in a wide range of different biological processes. They mediate a variety of cell-cell and cell-molecule interactions in eukaryotes and can be utilized by pathogens to evade the host immune response. N-acetylneuraminic acid is the most common sialic acid, and the predominant form present in humans. It can be found as a terminal sugar on a wide range of surface glycoconjugates. A number of bacteria that can colonize humans (such as E. coli) make use of N-acetylneuraminic acid as a nutrient source. N-Acetyl-a-neuraminic acid is a derivatized monosaccharide. Neuraminic acid derivatives are found widely distributed in animal tissues and in bacteria. The N- or O-substituted derivatives of neuraminic acid are collectively known as sialic acids, the predominant one being N-acetylneuraminic acid. [HMDB] N-Acetylneuraminic acid is a sialic acid monosaccharide ubiquitous on cell membrane glycoproteins and glycolipids of mammalian cell ganglioglycerides, which plays a biological role in neurotransmission, leukocyte vasodilation, and viral or bacterial infection.
Ketotifen
Ketotifen is only found in individuals that have used or taken this drug. It is a cycloheptathiophene blocker of histamine H1 receptors and release of inflammatory mediators. It has been proposed for the treatment of asthma, rhinitis, skin allergies, and anaphylaxis. [PubChem]Ketotifen is a relatively selective, non-competitive histamine antagonist (H1-receptor) and mast cell stabilizer. Ketotifen inhibits the release of mediators from mast cells involved in hypersensitivity reactions. Decreased chemotaxis and activation of eosinophils have also been demonstrated. Ketotifen also inhibits cAMP phosphodiesterase. Properties of ketotifen which may contribute to its antiallergic activity and its ability to affect the underlying pathology of asthma include inhibition of the development of airway hyper-reactivity associated with activation of platelets by PAF (Platelet Activating Factor), inhibition of PAF-induced accumulation of eosinophils and platelets in the airways, suppression of the priming of eosinophils by human recombinant cytokines and antagonism of bronchoconstriction due to leukotrienes. Ketotifen inhibits of the release of allergic mediators such as histamine, leukotrienes C4 and D4(SRS-A) and PAF. R - Respiratory system > R06 - Antihistamines for systemic use > R06A - Antihistamines for systemic use D018377 - Neurotransmitter Agents > D018494 - Histamine Agents > D006633 - Histamine Antagonists S - Sensory organs > S01 - Ophthalmologicals > S01G - Decongestants and antiallergics COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials C308 - Immunotherapeutic Agent > C29578 - Histamine-1 Receptor Antagonist D003879 - Dermatologic Agents > D000982 - Antipruritics D018926 - Anti-Allergic Agents Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
3h-Sialic acid
N-[5-(4,5-Dihydro-1H-imidazol-2-yl)-2-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl]methanesulfonamide
9-O-Acetylneuraminic acid
N-Acetylneuraminic acid
An N-acylneuraminic acid where the N-acyl group is specified as acetyl. N-Acetylneuraminic acid with alpha configuration at the anomeric centre. N-Acetylneuraminic acid with beta configuration at the anomeric centre. MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; SQVRNKJHWKZAKO-PFQGKNLYSA-N_STSL_0228_N-Acetylneuraminic acid_2000fmol_190114_S2_LC02MS02_081; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. N-Acetylneuraminic acid is a sialic acid monosaccharide ubiquitous on cell membrane glycoproteins and glycolipids of mammalian cell ganglioglycerides, which plays a biological role in neurotransmission, leukocyte vasodilation, and viral or bacterial infection.
4-[oxo(2-oxolanyl)methyl]-N-thiophen-2-yl-1-piperazinecarboxamide
N-({[1-Methyl-5-(1H-pyrrol-1-yl)-1H-pyrazol-4-yl]carbonyl}oxy)benzenecarboximidamide
8-(4-O-methyl-alpha-ribopyranosyloxy)-3,4-dihydroquinolin-2(1H)-one
N-Acetylneuraminate
N-Acetylneuraminic acid is a sialic acid monosaccharide ubiquitous on cell membrane glycoproteins and glycolipids of mammalian cell ganglioglycerides, which plays a biological role in neurotransmission, leukocyte vasodilation, and viral or bacterial infection.
ketotifen
R - Respiratory system > R06 - Antihistamines for systemic use > R06A - Antihistamines for systemic use D018377 - Neurotransmitter Agents > D018494 - Histamine Agents > D006633 - Histamine Antagonists S - Sensory organs > S01 - Ophthalmologicals > S01G - Decongestants and antiallergics COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials C308 - Immunotherapeutic Agent > C29578 - Histamine-1 Receptor Antagonist D003879 - Dermatologic Agents > D000982 - Antipruritics D018926 - Anti-Allergic Agents Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
ethyl 3-methyl-1-(4-methylphenyl)sulfonyl-2,5-dihydropyrrole-2-carboxylate
Morpholine,4-(1-methylethyl)-2-[3-(trifluoromethyl)phenyl]-, hydrochloride (1:1)
7-BENZYL-2-(TRIFLUOROMETHYL)-5,6,7,8-TETRAHYDROPYRIDO[3,4-D]PYRIMIDIN-4-OL
2-acetamido-4,6-o-benzylidene-2-deoxy-d-glucopyranose
9-(3,4-dichlorophenyl)-3-methyl-3-azaspiro[5.5]undec-9-ene
17-isocyanato-2,5,8,11,14-pentaoxabicyclo[13.4.0]nonadeca-1(15),16,18-triene
Propanedioic acid,2-[[(phenylmethoxy)carbonyl]amino]-, 1,3-diethyl ester
ETHYL 2-(2-CHLOROETHYLIDENE)-1-HYDRAZINECARBOXYLATE
Sangivamycin
D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents D000970 - Antineoplastic Agents Sangivamycin (NSC 65346), a nucleoside analog, is a potent inhibitor of protein kinase C (PKC) with an Ki of 10 μM. Sangivamycin has potent antiproliferative activity against a variety of human cancers[1][2]. Sangivamycin (NSC 65346), a nucleoside analog, is a potent inhibitor of protein kinase C (PKC) with an Ki of 10 μM. Sangivamycin has potent antiproliferative activity against a variety of human cancers[1][2].
4-(8-fluoro-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinolin-4-yl)benzoic acid
TRANS-1-(METHYLSULFONYL)SPIRO[CYCLOHEXANE-1,3-INDOLINE]-4-CARBOXYLIC ACID
3-[methyl[4-[(4-nitrophenyl)azo]phenyl]amino]propiononitrile
N-(1-PHENYL-4,5-DIHYDRO-1 H-PYRAZOL-3-YL)-PHTHALAMIC ACID
tert-Butyl [1-(2,5-difluorophenyl)-1-oxo-4-pentyn-2-yl]carbamate
4-HYDROXY-1-METHYL-2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID (2-AMINO-PHENYL)-AMIDE
BOC-3-AMINO-3-(BENZO[D][1,3]DIOXOL-5-YL)PROPANOICACID
1,2-Dithiolane-3-pentanamide, N-[2-hydroxy-1,1-bis(hydroxymethyl)ethyl]
4-(6-fluoro-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinolin-4-yl)benzoic acid
(R)-beta-[[(tert-Butoxy)carbonyl]amino]-1,3-benzodioxole-5-propanoic acid
ethyl 6-(difluoromethoxy)-2,3,4,9-tetrahydro-1h-carbazole-1-carboxylate
N-(1,3-benzodioxol-5-ylmethyl)-6-methoxy-4-quinazolinamine
5-(1,3-benzodioxol-5-yl)-N-(2,4-dimethylphenyl)-1,3,4-oxadiazol-2-amine
4-Hydroxy-3-nitrophenylacetyl-epsilon-aminocaproic acid anion
Domoate
D018373 - Peripheral Nervous System Agents > D009465 - Neuromuscular Agents > D009466 - Neuromuscular Blocking Agents
7-(3-Amino-5-hydroxyphenyl)-7-hydroxy-2,6-dimethyl-3,5-dioxoheptanoic acid
(4E)-4-[2-(2-carboxypyrrolidin-1-ium-1-ylidene)ethylidene]-2,3-dihydro-1H-pyridine-2,6-dicarboxylic acid
1-ethyl-6-methyl-3-[(E)-2-phenylethenyl]pyrimido[5,4-e][1,2,4]triazine-5,7-dione
2-(5-Amino-1-phenyl-1,2,4-triazol-3-yl)-3a,4,7,7a-tetrahydroisoindole-1,3-dione
1-(4-phenylmethoxyphenyl)-N-(thiophen-2-ylmethyl)methanamine
N-[[1H-indol-2-yl(oxo)methyl]amino]carbamic acid (phenylmethyl) ester
2-amino-N-(2,3,4,5-tetrahydro-2,5-dioxo-1h-1-benzazepin-3-yl)benzamide
Methyl 5-[(2-ethoxycarbonyl-3-oxohex-1-enyl)amino]uran-2-carboxylate
(2S,4E)-4-[2-[(2S)-2-carboxypyrrolidin-1-ium-1-ylidene]ethylidene]-2,3-dihydro-1H-pyridine-2,6-dicarboxylic acid
domoate(2-)
A tricarboxylic acid anion that is the conjugate base of domoic acid, arising from the deprotonation of the carboxy groups and protonation of the pyrrolidine nitrogen. Major species at pH 7.3.
N-[5-(4,5-Dihydro-1H-imidazol-2-yl)-2-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl]methanesulfonamide
terreazepine
A member of the class of benzazepines that is 2,3,4,5-tetrahydro-1H-1-benzazepine substituted by oxo groups at positions 2 and 5 and a o-aminobenzamido group at position 4. It is a secondary metabolite found in Aspergillus terreus.
gamma-Glu-Tyr(1-)
A peptide anion obtained by deprotonation of both carboxy groups and protonation of the glutamyl amino group of gamma-Glu-Tyr. Major species at pH 7.3.
Aceneuramate
N-Acetylneuraminic acid is a sialic acid monosaccharide ubiquitous on cell membrane glycoproteins and glycolipids of mammalian cell ganglioglycerides, which plays a biological role in neurotransmission, leukocyte vasodilation, and viral or bacterial infection.
CCT129957
CCT129957 is an indole derivative and a potent phospholipase C-γ (PLC-γ) inhibitor with an IC50 of ~3 μM and a GC50 of 15 μM. CCT129957 inhibits Ca2+ release in squamous carcinoma cells at ~15 μM[1][2].
ZINC69391
ZINC69391, a specific Rac1 inhibitor, interferes with Rac1-GEF interaction by masking Trp56 residue on Rac1 surface. ZINC69391 interferes with the interaction of Rac1 with Dock180 and reduces Rac1-GTP levels. ZINC69391 induces apoptosis, and shows antiproliferative and antimetastatic effects[1][2][3].
